This image shows shells of stars around a quasar known as MC2 1635+119. Quasars are among the brightest objects in the universe. They reside in the centers of galaxies and are powered by supermassive black holes.

Universe Calendar Observing Fascinating Cosmic Wonders
This image shows shells of stars around a quasar known as MC2 1635+119. Quasars are among the brightest objects in the universe. They reside in the centers of galaxies and are powered by supermassive black holes.